Study of Radiative Decays of Psi(2S) Mesons

2009/09/14 by Kaiyan Gao, Gao, Kaiyan
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex

paper · pdf · doi:10.48550/arxiv.0909.2812

PhD dissertation, 197 pages, 73 figures, December 2008

arxiv created 2009/09/16 · arxiv updated 2009/12/01

Abstract

We studied the decay psi(2S) to gamma eta_c(2S) with 25.9 million psi(2S) events collected with the CLEO-c detector. No psi(2S) to gamma eta_c(2S) decays were observed in any of the eleven exclusive eta_c(2S) decay modes studied. The product branching fraction upper limits were determined for all modes. The 90% confidence level upper limit of branching fraction of psi(2S) to gamma eta_c (2S) was obtained.

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